# Copyright 2017 the Arraymancer contributors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# Functional programming and iterator tooling
import std / sequtils

when not defined(nimHasEffectsOf):
  {.pragma: effectsOf.}

proc concatMap*[T](s: seq[T], f: proc(ss: T):string): string  {.noSideEffect, effectsOf: f.}=
  ## Map a function to a sequence of T and concatenate the result as string
  return s.foldl(a & f(b), "")
